| 2018 St. Petersburg Open | |
|---|---|
| Date | September 17–23 |
| Edition | 23rd |
| Category | ATP World Tour 250 Series |
| Surface | Hard / indoors |
| Location | St. Petersburg, Russia |
| Venue | Sibur Arena |
| Champions | |
| Singles | |
 Dominic Thiem | |
| Doubles | |
 Matteo Berrettini / Fabio Fognini | |
The 2018 St. Petersburg Open was a tennis tournament played on indoor hard courts. It was the 23rd edition of the St. Petersburg Open, and part of the ATP World Tour 250 Series of the 2018 ATP World Tour. It took place at the Sibur Arena in Saint Petersburg, Russia, from September 17 through 23, 2018.[1]
- ^ "St. Petersburg Open Overview". atpworldtour.com.